The invention discloses a nine-core
gold cluster compound and a synthesis method thereof, relates to a
gold cluster compound, and provides the nine-core
gold cluster compound which is higher in stability and capable of emitting strong light in a
liquid state, as well as a synthesis method thereof. The molecular formula of the nine-core gold cluster compound is [Au9(PC17NH13)6](BF4)3. The synthesis method comprises the following steps: mixing
diphenylphosphine and
butyl lithium in
tetrahydrofuran to obtain a solution A; dissolving 2,6-dichloropyridine in
tetrahydrofuran, and adding into the solution A; pumping out the
solvent, adding water for carrying out
quenching reaction, using
dichloromethane to extract, collecting an
organic layer, separating by a silicagel column to obtain 2,6-diphenyl phosphino-
pyridine; dissolving in
dichloromethane, adding Me2SAuCl, stirring, adding AgBF4, filtering, removing the
solvent to obtain a compound [(PNP)2Au2](BF4)2; dissolving the compound [(PNP)2Au2](BF4)2 in
dichloromethane, and adding a
methanol solution which is dissolved with KOH and NaBF4, removing the
solvent after refluxing, and extracting by dichloromethane to obtain the nine-core gold cluster compound.